Copyright: Copyright © 2006 - 2017, the ILK Research Group
(Tilburg University, The Netherlands) and the CLiPS Research Centre
(University of Antwerp, Belgium).
Author: Antal van den Bosch, Berjan Busser, Maarten van Gompel,
Ko van der Sloot
Copyright: Copyright © 2017 Maarten van Gompel
Author: Maarten van Gompel
Frog is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
Frog is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
On Debian systems, the complete text of the GNU General
Public License can be found in `/usr/share/common-licenses/GPL'.